Sheet fed multicolor rotary printing press



June 1, 1937.

' H. M. BARBER SHEET FED MULTICOLOR ROTARY PRINTING PRESS Filed Sept. 17, 1955 ATTORNEYS Patented June 1, 1937 PATENT oFFicE SHEET FED iIULTIOOIlOR ROTARY PRINT- lNG PRESS Howard M. Barber, Pawcatuck, Conn, assignor to C. B. Cottrell & Sons Company, Westerly, R. L, a corporation of Delaware Application September 4 Claims.

My invention comprises a rotary printing unit, means for feeding sheets thereto, a combined heating and cooling unit, means for transferring the printed sheets thereto from the printing unit,

and means for delivering the sheets from the combined heating and cooling unit to a predetermined point.

A practical embodiment of my invention is represented in the accompanying drawing which represents a diagrammatic side elevation of so much of the printing press as will give a clear understanding of my invention. 4

The rotary printing unit in thepresent in.- stance comprises an impression cylinder l, its sheet taking devices 2, four form cylinders 3, 4, S, 6 and their respective inking mechanisms 1, I, 9, it; said form cylinders being arranged around the under side of their impressioncylinder. This location of the form cylinders keeps them away from the influence of the combined heating and cooling unit and also allows ample room for the proper location of the sheet feed cylinder and transfer carriers. This location of the form cylinders brings them down into close p1 'oxim.ity,to the floor line thereby facilitating the handling of the plates and inking mecha- The source of sheet supply is shown, as a pile ii and the means for feeding the sheets 39 therefromto the impression cylinder I includes a feed table I 2 and a rotary sheet feed cylinder l3 whose sheet taking devices it are operable in the usual manner to take the sheets from the table i2 and transfer them to the impression cylinder sheet taking devices 2.

The combined heating and cooling unit in the present instance comprises a heating cylinder l5 and its sheet taking devices It, and a cooling cylinder i1 and its sheet taking devices It.

A rotary carrier I9 is provided withsheet taking devices 20 arranged to transfer the printed sheets from the impression cylinder sheet takin devices 2 to the heating cylinder sheet taking de-' vices i8. v I The means which I have shown for delivering the sheets from the combined heating and cooling unit to a predetermined point, in'the present instance the delivery pile 2i, comprises a carrier 22 traveling in an endless path and a rotary carrier 23 having sheet taking devices 24 arranged to take the sheets from the cooling cylinder sheet taking devices l8 and transfer the sheets to the sheet taking devices 25 on the endless carrier 22.

The sheets are maintained on the surface of 11, 1935, serial No. 40,877

the'heating cylinder it by rollers 26 and upon the surface of the cooling cylinder H by the rollers 21.

It will be understood that any suitable heating medium, such as steam, may be supplied to the heating cylinder i5 and that any suitable cooling medium, such as water, may be supplied to the cooling cylinder II.

It will also be understood that any well known or approved quick drying inks may be used in the printing unit.

In the present invention the sheet feeding means, the printing unit, the combined heating and cooling unit and the sheet delivery means are all located in the same longitudinal vertical plane with the combined heating and cooling unit and the sheet delivery pile are both located upon the same side of the printing and combined heating and cooling units.

1. In 'a sheet fed multicolor rotary printing press, an impression cylinder, form cylinders, inking mechanisms. means for feeding sheets to the impression cylinder, a heating cylinder, a cooling cylinder, a separate interposed means arranged to transfer. the sheets from the impression cylinder to the heating cylinder, a sheet delivery carrier traveling in an endless path, and an interposed means arranged to transfer the sheets from the cooling cylinder to the traveling .endless carrier.v

2.-In a sheet fed multicolor rotary printing press, an impression cylinder, form cylinders, inking mechanisms, means for feeding sheets to the impression cylinder, a heating cylinder, a cooling cylinder, a rotary carrier arranged to transfer the sheets from the impression cylinder to the heating cylinder, a sheet delivery carrier travelingln an endless path, and a rotary carrier arranged to transfer the sheets from the cooling cylinder to the travelingendless carrier.

'3. In a sheet fed multicolor rotary printing press. an impression cylinder having sheet taking devices, form cylinders, inking mechanisms, means for feeding sheets to the sheet taking devices of the impression cylinder, a heating cylinder having sheet taking devices, a cooling cylinder having sheet taking devices, a separate interposed means having sheet taking devices arranged to transfer the sheets from the sheet taking devices of the impression cylinder to the sheet taking devices of the heating cylinder, a sheet delivery carrier traveling in an endless path and having sheet taking devices, and an interposed means having sheet taking devices arranged to transfer the sheets from the sheet taking devices of the cooling cylinder to the sheet taking devices of the endless delivery carrier.

4. In a sheet fed multicolor rotary printing press, an impression cylinder having sheet taking devices, form cylinders, inking mechanisms,

means for feeding sheets to the sheet taking devices oi. the impression cylinder, a heating cylinder having sheet taking defices, a cooling cylinder having sheet taking devices, a rotary carrierhaving sheet taking devices arranged to transfer the sheets from the sheet taking devices of the impression cylinder to the sheet taking devices of the heating cylinder, a sheet delivery carrier traveling in an endless path and having sheet taking devices, and a rotary carrier having sheet taking devices arranged to transfer the sheets from the sheet taking devices of the cooling cylinder to the sheet taking devices of the endless delivery carrier.

HOWARD M. BARBER. 

